diff --git a/Ultimaker-Cura.spec.jinja b/Ultimaker-Cura.spec.jinja
index a6d0083d53..ea69eb9efd 100644
--- a/Ultimaker-Cura.spec.jinja
+++ b/Ultimaker-Cura.spec.jinja
@@ -14,7 +14,7 @@ datas += tmp_ret[0]; binaries += tmp_ret[1]; hiddenimports += tmp_ret[2]
 block_cipher = None
 
 a = Analysis(
-    ['{{ entrypoint }}'],
+    [{{ entrypoint }}],
     pathex=[],
     binaries=binaries,
     datas=datas,
@@ -47,7 +47,7 @@ exe = EXE(
     codesign_identity=os.getenv('CODESIGN_IDENTITY', None),
     entitlements_file={{ entitlements_file }},
     bundle_identifier={{ osx_bundle_identifier }},
-    icon='{{ icon }}'
+    icon={{ icon }}
 )
 coll = COLLECT(
     exe,
diff --git a/conanfile.py b/conanfile.py
index 286eed0fee..fc687ac7b0 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -228,8 +228,8 @@ class CuraConan(ConanFile):
         if self.options.devtools:
             entitlements_file = "'{}'".format(Path(self.source_folder, "packaging", "dmg", "cura.entitlements"))
             self._generate_pyinstaller_spec(location = self.generators_folder,
-                                            entrypoint_location = str(Path(self.source_folder, self._um_data(self.version)["runinfo"]["entrypoint"])),
-                                            icon_path = str(Path(self.source_folder, "packaging", self._um_data(self.version)["pyinstaller"]["icon"][str(self.settings.os)])),
+                                            entrypoint_location = "'{}'".format(Path(self.source_folder, self._um_data(self.version)["runinfo"]["entrypoint"])).replace("\\", "\\\\"),
+                                            icon_path = "'{}'".format(Path(self.source_folder, "packaging", self._um_data(self.version)["pyinstaller"]["icon"][str(self.settings.os)])).replace("\\", "\\\\"),
                                             entitlements_file = entitlements_file if self.settings.os == "Macos" else "None")
 
     def imports(self):
@@ -305,8 +305,8 @@ class CuraConan(ConanFile):
 
         entitlements_file = "'{}'".format(Path(self.cpp_info.res_paths[2], "packaging", "dmg", "cura.entitlements"))
         self._generate_pyinstaller_spec(location = self._base_dir,
-                                        entrypoint_location = str(Path(self.cpp_info.bin_paths[0], self._um_data(self.version)["runinfo"]["entrypoint"])),
-                                        icon_path = str(Path(self.cpp_info.res_paths[2], self._um_data(self.version)["pyinstaller"]["icon"][str(self.settings.os)])),
+                                        entrypoint_location = "'{}'".format(Path(self.cpp_info.bin_paths[0], self._um_data(self.version)["runinfo"]["entrypoint"])).replace("\\", "\\\\"),
+                                        icon_path = "'{}'".format(Path(self.cpp_info.res_paths[2], self._um_data(self.version)["pyinstaller"]["icon"][str(self.settings.os)])).replace("\\", "\\\\"),
                                         entitlements_file = entitlements_file if self.settings.os == "Macos" else "None")
 
     def package(self):